Green Line (Namma Metro)

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ಹಸಿರು ರೇಖೆ
Green Line
Inside Mantri Square Sampige Road metro station, July 2017.jpg
Sampige Road station on the Green line.
Other name(s)North - South corridor
TypeRapid Transit
SystemNamma Metro
LocaleBangalore, Karnataka, India
TerminiNagasandra (north)
Yelachenahalli (south)
Daily ridership170,685
Ridership62.3 million (2018)[1]
Opened1 March 2014; 5 years ago (2014-03-01)
OwnerBangalore Metro Rail Corporation Limited (BMRCL)
CharacterElevated and underground
Rolling stockHyundai Rotem
Line length24.20 km (15.04 mi)
Number of tracks2
Track gauge1,435 mm (4 ft 8 12 in) standard gauge
Electrification750 V DC third rail
Operating speed40 km/h (25 mph)
Green Line map

Bangalore International
Exhibition Centre
Peenya Industry
Sandal Soap Factory
Kuvempu Road
Sampige Road
KR Market
National College
Southend Circle
Rashtreeya Vidyalaya Road
Bommasandra line
Jayaprakash Nagar
Anjanapura Road Cross
Krishnaleela Park
Vajrahalli station
Anjanapura Township

The Green Line of the Namma Metro is part of the mass-transit rail system for the city of Bangalore, India. The 24.20 km line connects Nagasandra to Yelachenahalli. The line connects the northern, central and the southern areas of Bangalore. The Green Line is mostly elevated, with 21 elevated stations and 3 underground stations. The Majestic station serves as the interchange station with the Purple Line.

When Phase II is completed, it will stretch from BIEC in the north to Anjanapura in the south for a total length of 40.10 km (24.917 miles). The completion of Phase I of this line was delayed several times, due to difficult tunnelling conditions.


The following dates represent the dates the section opened to the public, not the private inauguration.[2]

Name Extension date Terminals Length Stations
Reach 3 1 March 2014 Yeshwanthpur Sampige Road 5.10 km (3.17 mi) 7
Reach 3A 1 March 2014 Peenya Industry Yeshwanthpur 4.80 km (2.98 mi) 3
Reach 3B 1 May 2015 Nagasandra Peenya Industry 3.40 km (2.11 mi) 3
Reach 4 18 June 2017[3] National College R.V. Road 4.10 km (2.55 mi) 5
Reach 4A 18 June 2017[3] R.V. Road Yelachenahalli 3.90 km (2.42 mi) 3
UG 2 18 June 2017[3] Sampige Road National College 8.6 km (5.3 mi)[4] 3
Reach 3C 2021[5] Nagasandra BIEC 3.77 km (2.34 mi)[6] 3
Reach 4 extension August 2020[5] Yelachenahalli Anjanapura 6.29 km (3.91 mi)[6] 5
Total BIEC Anjanapura 40.10 km (24.92 mi) 32

Phase I[edit]

The detailed project report (DPR) for Phase I, comprising the Purple and Green Lines, of the Namma Metro project was prepared by the Delhi Metro Rail Corporation (DMRC) and submitted to the BMRCL in May 2003. The final approval on a scheme that incorporated the expertise of DMRC and RITES Limited did not come until April 2006.[7] The DPR prepared by DMRC envisaged a 33 km (21 mi) elevated and underground rail network with 32 stations for Phase I of the project. The proposed gauge was standard gauge unlike the broad gauge on the Delhi Metro network. The rationale for the metro includes reduced journey times, cutting fuel use, accident reduction and lower pollution.

Construction work for Phase I of the Namma Metro project was scheduled to start in 2005 but was delayed by a February 2006, due to change of government in Karnataka and continued debate over whether the project was financially feasible and appropriate for the city. The Union Cabinet approved Phase I of the Namma Metro on 25 April 2006, when it was estimated to cost 5,400 crore (US$760 million). The cost escalated to 13,845 crore (US$1.9 billion) as various problems delayed the completion of the project.[8][9][10] Land acquisition for Phase I of the project cost 2,500 crore (US$350 million).[8] BMRCL secured 6,500 crore (US$910 million) through long-term loans and 300 crore (US$42 million) by selling bonds, while the remaining project cost was funded by Central Government and the State Government. BMRCL secured loans from several agencies - 3,000 crore (US$420 million) from the Japan International Cooperation Agency (JICA), 600 crore (US$84 million) from the Housing and Urban Development Corporation Limited (HUDCO), 25 crore (US$3.5 million) from the Asian Development Bank (ADB), and the rest from a French lending agency. Approximately 10% of the 6500 crore must be paid as interest by the BMRCL every year. The Federation of Karnataka Chambers of Commerce and Industry estimated that this amounted to an interest payment of 2 crore (US$280,000) per day; however the BMRCL refuted the claims that the interest was that high, while confirming that it was "definitely more than 1 crore (US$140,000) per day."[8]

The foundation stone for the Phase I construction was laid by Prime Minister Manmohan Singh on 24 June 2006.[11] Construction on Reach 3 and 3A of Phase I of the Namma Metro began in 2009–10. The total cost of the project on this stretch was 2,100 crore.[12] The underground work commenced in May 2011. Each corridor consists of two tunnels which are the first tunnels built for trains in South India. The tunnels, dug using tunnel boring machines (TBM), are located approximately 60 feet below ground level, have a diameter of 5.5 metres and are 5 metres apart. Four TBMs, nicknamed Helen (TBM 1), Margarita (TBM 2), Kaveri (TBM 3) and Krishna, were used for tunnelling work on the Green Line.[13][14][15][16][17][18] A trial run was conducted on 8 August 2013.[19]

Construction of the stretch required 1.3 lakh tonnes of concrete, 44,500 tonnes of steel bars, and 190 km of high tension wires weighing 2900 tonnes. A total of 395 piers, including station piers and portals, were constructed on the stretch. The tallest pier of the viaduct is a 21-metre pier between Kuvempu Road and Sriramapuram stations, opposite Gayatri Devi Park. There 353 spans on the stretch, the longest being the 66 metre curved span over the railway track off Sriramapuram. The total roofing area of the 10 stations on the stretch was 47,000 square metres.[20]

The line was opened to the public on 1 March 2014.[21] BMRCL Managing Director Pradeep Singh Kharola stated that about 25,000 passengers travelled on the line on opening day.[22] Civil works had not been completed at Peenya Industry and Peenya stations, among others. These were covered up by paintings, and work was expected to be complete in another two months.[23] In the first month of operations, 7.62 lakh people at an average of 24,605 people daily used the line, generating a revenue of 1.5 crore (US$210,000).[24]

Tunnel boring machine, Godavari, began drilling the 970 metre underground stretch between the Sampige Road and Majestic stations in April 2014. Godavari broke down a few months later, and needed to have its cutter head replaced. According to the BMRCL, the machine broke down due to tough terrain including hard rock and boulders. The cutter head had to be imported from Italy. The machine restarted work in September 2015. Godavari completed drilling and emerged on the Majestic station end of the tunnel on 19 April 2016.[25] Meanwhile, Kaveri and Krishna were drilling the underground stretch between National College and Majestic station. As of April 2016, Kaveri and Krishna had about 100 metres and 250 metres of drilling left to complete, respectively.[26]

Construction of the 8.6 km underground section of the Green Line required the use of 3,000 transit mixer loads of concrete, and 1,000 km of cable had to be laid. If laid end-to-end, the length of cable used would be long enough to stretch from Bangalore to Mumbai.[27]

Trial runs on the elevated section between National College and Yelachenahalli began on 23 November 2016. Trials were conducted between National College and Jayanagar initially at a speed of 10 km/h, and then along the entire elevated section between National College and Yelachenahalli at a speed of 25 km/h.[28] Trials runs between Sampige Road station and Yelachenahalli were originally scheduled for 15 February 2017, but was postponed to 25 February. This was further delayed to March 2017.[29] Trial runs began in the tunnel on 30 March 2017. On 1 April, a metro train departed the Krishna Rajendra Market Metro station at 4PM bound for National College;, while at 4:08 PM, a train departed from K.R. Market to Sampige Road station.[30]

Services at the Sampige Road, Srirampura and Kuvempu Road stations were suspended between 13 and 22 March, so authorities could conduct static and other tests, and to link the Sampige Road station with Majestic. During the 10 day period, services operated only between Nagasandra and Rajajinagar stations. The BMTC introduced special feeder services to transport passengers from Rajajinagar station to Hosahalli station.[31][32] Services between Sampige Road and Rajajinagar were suspended again for four days beginning 13 April to conduct trial runs on the underground section between Sampige Road and National College stations.[33][34] Trial runs were completed on 16 May 2017.[35]

Phase II[edit]

The contract for the construction of the 6.5 km extension of Reach 4 from Yelachenahalli to Anjanapura was awarded to Nagarjuna Construction Co. The extension is estimated to cost 508.86 crore (US$71 million).[36] Civil work on the extension began in October 2016,[37] and is expected to complete by 2019.

In October 2016, BMRCL invited bids for the construction of viaduct and stations on the 3.031 km extension of the Green Line from Nagasandra to BIEC.[37] The contract for the extension, known as Reach 3C, was awarded to Simplex Infrastructure Limited in late February 2017. The contract specified a cost of 247.41 crore (US$35 million) and a deadline for completion of 27 months.[36][38] The start of construction on the extension was delayed by 4 months due to land acquisition issues concerning land near Jindal Aluminium Limited in Kirloskar Layout. The BMRCL stated that the issues were resolved and construction began in June 2017.[39]


There will be 32 stations on the Green Line; of these, 13 are currently operational. Each station has around 60 surveillance cameras. 36 passenger lifts and 52 escalators are built on the 13 stations of Reaches 3 and 3A.[20]

Green Line
# Station Name Opening Connections Layout Coordinates
English Kannada
1 Bangalore International Exhibition Centre (BIEC) ಬಿ.ಐ.ಈ.ಸಿ. None
2 Chikkabidarakallu


3 Manjunathanagar ಮಂಜುನಾಥನಗರ None
4 Nagasandra ನಾಗಸಂದ್ರ 1 May 2015 None Elevated
5 Dasarahalli ದಾಸರಹಳ್ಳಿ 1 May 2015 None Elevated
6 Jalahalli ಜಾಲಹಳ್ಳಿ 1 May 2015 None Elevated
7 Peenya Industry ಪೀಣ್ಯ ಕಾರ್ಖಾನೆ 1 March 2014 None Elevated
8 Peenya ಪೀಣ್ಯ 1 March 2014 None Elevated
9 Goraguntepalya ಗೊರಗುಂಟೆಪಾಳ್ಯ 1 March 2014 None Elevated
10 Yeshwanthpur ಯೆಶವಂತಪುರ 1 March 2014 Yesvantpur railway station Elevated
11 Sandal Soap Factory ಸ್ಯಾಂಡಲ್ ಸೋಪ್ ಫ್ಯಾಕ್ಟರಿ 1 March 2014 None Elevated
12 Mahalakshmi ಮಹಾಲಕ್ಷ್ಮಿ 1 March 2014 None Elevated
13 Rajajinagar ರಾಜಾಜಿನಗರ 1 March 2014 None Elevated
14 Kuvempu Road ಕುವೆಂಪು ರಸ್ತೆ 1 March 2014 None Elevated
15 Srirampura ಶ್ರೀರಾಂಪುರ 1 March 2014 None Elevated
16 Sampige Road ಸಂಪಿಗೆ ರಸ್ತೆ 1 March 2014 None Elevated
17 Majestic ಕೆಂಪೇಗೌಡ ನಿಲ್ದಾಣ 18 June 2017      Purple Line Underground
18 Chickpet ಚಿಕ್ಕಪೇಟೆ 18 June 2017 None Underground
19 Krishna Rajendra Market ಕೃಷ್ಣ ರಾಜೇಂದ್ರ ಮಾರುಕಟ್ಟೆ 18 June 2017 None Underground
20 National College ನ್ಯಾಷನಲ್ ಕಾಲೇಜು 18 June 2017 None Elevated
21 Lalbagh ಲಾಲ್ ಬಾಗ್ 18 June 2017 None Elevated
22 Southend Circle ಸೌತ್ ಎಂಡ್ ವೃತ್ತ 18 June 2017 None Elevated
23 Jayanagar ಜಯನಗರ 18 June 2017 None Elevated
24 Rashtreeya Vidyalaya Road ರಾಷ್ಟೀಯ ವಿದ್ಯಾಲಯ ರಸ್ತೆ 18 June 2017 R V Road – Bommasandra Line Elevated
25 Banashankari ಬನಶಂಕರಿ 18 June 2017 None Elevated
26 Jayaprakash Nagar ಜಯಪ್ರಕಾಶ ನಗರ 18 June 2017 None Elevated
27 Yelachenahalli ಎಲಚೇನಹಳ್ಳಿ 18 June 2017 None Elevated
28 Konanakunte Cross Konanakunte ಕ್ರಾಸ್ None
29 Krishna Leela Park (ISKCON Temple) ಕೃಷ್ಣ ಲೀಲಾ ಪಾರ್ಕ್ None
30 Vajarahalli ವಾಜರಹಳ್ಳಿ None
31 Talaghattapura ತಲಘಟ್ಟಪುರ None
32 NICE Road Anjanapura Township ನೈಸ್ ಅಂಜನ ಟೌನ್ ಶಿಪ್ None


Rolling stock[edit]

Rolling stock on the Green Line are silver with a streak of bright green along its length.[40]


Power is supplied to the Green Line from the Peenya sub-station of the Karnataka Power Transmission Corporation Ltd. (KPTCL).[41][42]


In September 2009, the consortium led by Alstom Project India Limited were awarded a contract worth 563.4 crore (US$79.0 million) to supply control and signalling system for the first phase of the project. The consortium is led by Alstom and composed of Alstom Transport SA, Thales Group Portugal S A and Sumitomo Corporation. Alstom will provide the design, manufacture, supply, installing, testing and commissioning of the train control and signalling system and Thales will provide the design, installing, testing and commissioning of the telecommunication system for Phase I of the metro system. It includes the Urbalis 200 Automatic Train Control system which will ensure optimal safety, flexible operations and heightened passenger comfort.[43][44]


Frequency and capacity[edit]

Trains initially operated on the Green Line from 6 am to 11 pm. This was extended to 5 am to 11 pm from 1 December 2015. The frequency along the line is 15 minutes between 5 am and 8 am, and 8 pm and 11 pm, and 10 minutes between 8 am and 8 pm.[45] Trains halt for 30 seconds at each station.[46] The 14.27 km stretch of Reaches 3, 3A and UG2 is covered in 24 minutes, much less than the 45 minutes required by road.[47] Each three-coach train has a capacity of 975 passengers.[20]

See also[edit]


  1. ^ "Namma Metro surges ahead, clocks four-crore jump in annual ridership - Times of India". The Times of India. Retrieved 24 January 2019.
  2. ^ "Metro Network". Archived from the original on 14 August 2015. Retrieved 27 April 2016.
  3. ^ a b c "All of Bangalore Metro Phase-1 will be up and running from June 18". The New Indian Express. Retrieved 15 June 2017.
  4. ^ ReporterBengaluru, Staff. "BMRCL races to meet April 15 deadline". The Hindu. Retrieved 8 March 2017.
  5. ^ a b "Decks cleared for Namma Metro's Phase 2 depots - Times of India". The Times of India. Retrieved 29 March 2019.
  6. ^ a b "BMRCL begins razing structures for metro to Whitefield". Bangalore Mirror. Retrieved 4 April 2017.
  7. ^ "Bangalore Metro Rail Project Phase 2" (PDF). Bangalore Metro Rail Corporation Limited. Archived from the original (PDF) on 12 April 2015. Retrieved 27 March 2014.
  8. ^ a b c "Metro June Deadline Stands, But With Rider". The New Indian Express. Retrieved 27 April 2016.
  9. ^ "Cabinet approves Bangalore metro". Online Edition of The Economic Times. 28 April 2006.
  10. ^ "It's official: Namma Metro Phase-1 not before 2014". Deccan Chronicle. 21 December 2011. Archived from the original on 12 January 2016. Retrieved 3 January 2012.
  11. ^ "PM lays foundation stone for Metro project". PM office website. Archived from the original on 11 May 2011.
  12. ^ "Green train rolls out on March 1". The Times of India. 25 February 2014. Retrieved 27 March 2014.
  13. ^ Rohith B R, Bangalore, 14 Oct 2012, DHNS (14 October 2012). "Automation helps precise work on metro tunnels". Deccan Herald. Retrieved 4 March 2013.CS1 maint: multiple names: authors list (link)
  14. ^ RohithB R, Bangalore, 13 Oct 2012, DHNS (13 October 2012). "Metro makes steady inroads". Deccan Herald. Retrieved 4 March 2013.CS1 maint: multiple names: authors list (link)
  15. ^ Special Correspondent (28 September 2012). "A smoother passage for Margarita". The Hindu. Chennai, India. Retrieved 4 March 2013.
  16. ^ Bangalore, 23 Sep 2012, DHNS (23 September 2012). "Tunnelling along north-south corridor to begin soon". Deccan Herald. Retrieved 4 March 2013.CS1 maint: multiple names: authors list (link)
  17. ^ Update : 06:47 pm IST (18 December 2012). "Metro rushes to meet deadline". Deccan Chronicle. Archived from the original on 6 January 2013. Retrieved 4 March 2013.
  18. ^ Bangalore, 21 Feb 2013, DHNS (21 February 2013). "After Helen, Margarita, it's Krishna and Kaveri". Deccan Herald. Retrieved 4 March 2013.CS1 maint: multiple names: authors list (link)
  19. ^ Special Correspondent (9 August 2013). "Labour Ministry puts BMRCL on notice for labour law violations". The Hindu. Chennai, India. Retrieved 27 March 2014.
  20. ^ a b c Anil Kumar Sastry (24 February 2014). "Peenya-Sampige Road metro line to be thrown open on Saturday". The Hindu. Chennai, India. Retrieved 27 March 2014.
  21. ^ Special Correspondent (28 February 2014). "CM in a hurry, delays Namma Metro launch". The Hindu. Chennai, India. Retrieved 27 March 2014.
  22. ^ "25,000 ride Green line Metro on 1st working day". Deccan Herald. 3 March 2014. Retrieved 27 March 2014.
  23. ^ "'This one feels like Namma Metro as it's closer home'". The Hindu. Chennai, India. 1 March 2014. Retrieved 27 March 2014.
  24. ^ Kulkarni, Tanu (5 April 2014). "Byappanahalli-M.G. Road metro stretch more popular". The Hindu. Chennai, India.
  25. ^ "Godavari sees light - Bangalore Mirror -". Bangalore Mirror. Retrieved 20 April 2016.
  26. ^ "Bengaluru: East-west corridor from Byappanahalli to Mysuru Road may open next week - The Economic Times". Retrieved 10 April 2017.
  27. ^ "April deadline nears but trial runs yet to begin". The Times of India. Retrieved 9 March 2017.
  28. ^ "Bengaluru Metro to go underground on south side soon". The New Indian Express. Retrieved 3 March 2017.
  29. ^ "Sampige Road-Yelachenahalli Metro trial run delayed by a week". Deccan Herald. Retrieved 28 February 2017.
  30. ^ "Bengaluru Metro trials in underground tunnel begin on North-South Corridor". The New Indian Express. Retrieved 1 April 2017.
  31. ^ "Part of Namma Metro Green Line to be shut for 10 days". Deccan Herald. Retrieved 11 March 2017.
  32. ^ Reporter, Staff. "Three metro stations on Green Line to be closed from Monday". The Hindu. Retrieved 11 March 2017.
  33. ^ Reporter, Staff. "Metro suspended". The Hindu. Retrieved 13 April 2017.
  34. ^ "Sampige Road-Rajajinagar Metro shut for 4 days". Deccan Herald. Retrieved 13 April 2017.
  35. ^ "Metro trial runs to be over today". Deccan Herald. Retrieved 16 May 2017.
  36. ^ a b "At Rs 247 crore, contract for Namma Metro purple line extension finalised". The Economic Times. Retrieved 28 February 2017.
  37. ^ a b "BMRCL invites bids for 3-km extension from Nagasandra". Deccan Herald. Retrieved 28 February 2017.
  38. ^ "Metro to start work on third stretch of Phase-II". The New Indian Express. Retrieved 13 April 2017.
  39. ^ "Work on BIEC Metro link begins as Jindal land acquired". Deccan Herald. 25 August 2017. Retrieved 8 October 2018.
  40. ^ Preeti Zachariah (24 March 2014). "A ride through the clouds". The Hindu. Chennai, India. Retrieved 27 March 2014.
  41. ^ "Green Line Namma Metro services disrupted for an hour". The Hindu. Chennai, India. 6 April 2014.
  42. ^ "Power cut disrupts Greenline metro services". Deccan Herald. Bangalore, India. 7 April 2014.
  43. ^ "Alstom will provide train control and signalling system for the new Bangalore metro network in India". Alstom. Retrieved 2 October 2011.[dead link]
  44. ^ "Alstom-led consortium in pact with Bangalore Metro". Business Standard. 18 September 2009. Retrieved 3 May 2010.
  45. ^ "Metro Services Extended- The New Indian Express". Retrieved 10 April 2017.
  46. ^ Nair, Anisha (1 March 2014). "Malleshwaram-Peenya metro phase ready for public use from March 1". News Oneindia. Retrieved 27 March 2014.
  47. ^ "Peenya to Malleswaram in just 18 mins". Deccan Herald. 27 February 2014. Retrieved 27 March 2014.

External links[edit]